A Low Cross-Polarization Configuration Method for Phased Array Radar Antenna
State Key Laboratory of Complex Electromagnetic Environment Effects on Electronics and Information System, National University of Defense Technology, Changsha 410073, China
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Electronics 2020, 9(3), 396; https://doi.org/10.3390/electronics9030396
Received: 29 January 2020 / Revised: 21 February 2020 / Accepted: 24 February 2020 / Published: 27 February 2020
(This article belongs to the Special Issue Recent Advances in Array Antenna and Array Signal Processing)
The cross-polarization isolation (CPI) is a key parameter to assess the dual-polarization antenna because the cross-polarization closely affects the antenna application. A polarization state configuration (PSC) approach is proposed to configure the polarization state of the polarimetric phased array radar antenna. Unlike the traditional fixed polarization states such as the linear polarization (LP) and the circular polarization (CP), the PSC method modulates the polarization state of the radiated wave continuously. In addition, the optimal excitation magnitude and phase of the dual-polarization element is calculated, thereby maximizing the CPI. Most of the configured polarization state is the elliptical polarization (EP), and a lower cross-polarization level and higher CPI could be obtained. This method could expand the acceptable angle range when compared with the LP and CP waves. Numerical simulations and comparisons are conducted to manifest the validity of the proposed method.
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Keywords:
cross-polarization isolation; different polarization states; dual-polarization antenna; polarization state configuration
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MDPI and ACS Style
Li, Y.; Wang, Z.; Pang, C.; Wang, X. A Low Cross-Polarization Configuration Method for Phased Array Radar Antenna. Electronics 2020, 9, 396. https://doi.org/10.3390/electronics9030396
AMA Style
Li Y, Wang Z, Pang C, Wang X. A Low Cross-Polarization Configuration Method for Phased Array Radar Antenna. Electronics. 2020; 9(3):396. https://doi.org/10.3390/electronics9030396
Chicago/Turabian StyleLi, Yongzhen; Wang, Zhanling; Pang, Chen; Wang, Xuesong. 2020. "A Low Cross-Polarization Configuration Method for Phased Array Radar Antenna" Electronics 9, no. 3: 396. https://doi.org/10.3390/electronics9030396
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